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Surge Anticipator Valve

High Performance • Durable • Leak Proof

API 6DASME B16.34ISO 17292CE Certified

Surge Anticipator Valve for protecting pipelines from pressure surges and water hammer.

Technical Specifications

Key Features & Applications



Surge Anticipator Valve Manufacturer in Africa

Product Introduction

In case of an abrupt shutting off of a pump, power failure, or change in flow rate, pressure waves can be generated which move along the pipeline, leading to water hammer. Pressure waves may lead to destruction of the pumps, valves, couplings, and pipes if left uncontrolled. The Surge Anticipator Valve is capable of detecting the above mentioned situation and opening automatically even before the approaching pressure wave becomes destructive. By doing this, it prevents damage to the pipe line and associated equipment. African Valve is a Prominent Surge Anticipator Valve Manufacturer in Africa, manufacturing and supplying Surge Anticipator Valves in various material grades, pressure classes, sizes, and end connections for projects across Nigeria, Egypt, South Africa, Kenya, Ghana, and other African countries, along with international export destinations.

How Does a Surge Anticipator Valve Prevent Water Hammer?

Surge Anticipator Valve is generally mounted close to the pump’s discharge. In its regular working, the valve stays closed and detects pressure in the system using a pilot control system. In case of an abrupt stoppage of the pump or failure in power resulting in the quick fall of pressure, the pilot system detects the problem and immediately opens the valve. It helps in discharging the extra water before the pressure wave builds up into a harmful surge. When the pressure is stabilized in the system, the valve is closed slowly..

Valve Construction

This comprises a heavy-duty valve body, diaphragm assembly, pilot control unit, needle valve, pressure line, cover chamber, stainless steel trim, and drain connection. Depending on the particular use, the valve may also have extra fittings like pressure gauge, isolation valves, and solenoid valves among others that meet the hydraulic design specifications.



Materials & Construction

The valve is manufactured using:

  • Ductile Iron – ASTM A536 Grade 65-45-12

  • Cast Stainless Steel – ASTM A351 CF8 / CF8M

  • Bronze

  • Stainless Steel Trim

  • EPDM or NBR Diaphragm

Construction features include:

  • Pilot Operated Hydraulic Control

  • Fast Surge Response Mechanism

  • Stainless Steel Internal Components

  • Reinforced Diaphragm Assembly

  • Adjustable Pressure Settings

  • Flanged End Connections

  • Automatic Operation

Technical Specifications

  • Size Range: DN50 to DN600 (2" to 24")

  • Pressure Ratings: PN10, PN16, PN25, PN40

  • Design Standards: EN 1074-5, ASME B16.34

  • Testing Standards: ISO 5208, EN 12266-1

  • End Connections: Flanged

  • Operation: Pilot Operated Automatic Control

Industrial Applications

Surge Anticipator Valves are commonly used in:

  • Water Transmission Pipelines

  • Pumping Stations

  • Irrigation Networks

  • Water Treatment Plants

  • Wastewater Facilities

  • Desalination Plants

  • Power Generation Plants

  • Industrial Pipeline Systems

Product Features

  • Protects pipelines against water hammer

  • Opens automatically during sudden pressure changes

  • Reduces stress on pumps, valves, and fittings

  • Pilot-operated design provides rapid response

  • Suitable for high-capacity pumping systems

  • Manufactured according to internationally recognized engineering standards

Manufacturing & Inspection

Before dispatch, every Surge Anticipator Valve is inspected for dimensional accuracy, hydrostatic shell integrity, diaphragm performance, pilot control operation, seat leakage, and overall functional performance. Material Test Certificates (MTC), pressure test reports, inspection records, and supporting documentation are available to satisfy engineering, procurement, and project compliance requirements.

Supply Across Africa

The African Valve company provides Surge Anticipator Valves for water transmission, municipal pumps, irrigation, desalination, waste water treatment, and pipeline systems in various African nations including Nigeria, Egypt, South Africa, Kenya, Ghana and more. The valves come in different types of materials, pressure ratings, sizes and pilot controls according to specific project needs.



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Certified Products
Wide Range of Sizes
Corrosion Resistant
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